Plaiting-machine.



Patented June6,'1916.

6 SHEETS-SHEETI F. F. BRUCKEH.

PLAITING MACHINE.

A'PPLlcATloN FILED :uns 9.1914.

Patented J une 6, 1916.

6 SHEETS-SHEET 2.

Tmz cnLuMmA PLANouRAPH co., WASHING-row. v.

F. F. BRUCKER.

PLAITING MACHINE.

APPLICATION FILED IUNE 9, 1914. Patented June 6 6 SHEETS-SHEET 3- Il IIIG/btoww THB CDLUMBIA P LANDGRAH C0., WASHINGTDN. D. L

y1,18-6374k Patentedlune, 1916.

`F. F. BRUCKER.

PLA'ITING MACHINE.

APPLICATION FILED JUNE 9,1944.

6 SHEETS-SHEET 4.

Wneooeo *"E/ww i www@ Streuung THE coLuMBM PMNDURAPM co., WASHINGTON. D.c.

F.4.F. BRUCKER.' PLAITING MACHIIIIE. APPLICATION FILED JUNE 9 |914.

Patented J une 6, 1916..

6 SHEETS-SHEET 5.

THB COLUMBIA PLANOGRAPH 00. WASHINGTUN. D. CI

F. F. BRUCKER.

PLMTING MACHNE.

APPucATxoN msn JUNE 9.1914.

UNITED sTATEs PATENT oEEioE;

FERDINAND E. BRUOKER, or AKRON, OHIO, AssIGNOR To MiLLER RUBBER COMPANY,

0F AKRON, OHIO, A CORPORATION 0F OHIO.

PLAITING-MACHINE.

Application filed .Tune 9, 1914.

To all whom t may concern Be it known that I, FERDINAND FRANoIs BRUCKER,a citizen of the United States, residing at Akron, in the county ofSummit and State of Ohio, have invented certain new and usefulImprovements in Plaiting- Machines, of which the following is aspecification.

The present invention relates to an improved process and apparatus forplaiting sheet materials, such as rubber, paper, cloth, or other fabric.l

The invention was designed primarily for the purpose of plaiting acircular' disk of rubber to form a bathing cap, but is not restricted tothis particular use, as the principlc embodied herein can readily beemployed in the production of various other articles of the same andother materials.

lThe invention consists essentially in providing an improved method andmeans for plaiting a circular piece of rubber or similar fabric, byfirst preparing the material to be used, folding it, or a portion ofv itinto plaits, and permanently cementing the plaited portion to retain thedesired form.

Although the invention, as hereinafter set forth, is described andillustrated primarily for the production of a circulararticle such as abathing cap, it is nevertheless equally well adapted for plaitingmaterial in the form of a half disk, a quarter disk, a fiat ring ofstock, having the center cut away,-

or any portion of a at ring of stock.

With these and other objects in view, the invention consists in thenovel features and combination and arrangement of parts hereinafterdescribed, illustrated in the aocompanying drawings, and pointed out inthe appended claims.

In the drawings: Figure l is a side elevation with parts in section.Fig. 2 is a front elevation of the complete machine. Figs. 3, et and 5are enlarged detailed sections with parts shown in elevationillustrating the successive positions of the clamping and folding armsand the circular former head during the various stages in the operation.Figs. 6 7, S and 9 are elevational views of the operating cams. Figs. 10to 14 are diagrams showing the relative positions of the clamping andfolding arms which carry the stock and the circular former head, Fig.l() being a. diagram with the radial arms in their initial position andthe material lying flat thereon. Fig. l1 shows the positionSpecification of Letters Patent.

Serial No. 844,095.

of the two sets of arms as they are being advanced toward the circularformer head. Fig. 12 shows one set of arms carrying the material incontact with the former head in advance of the other set. Fig. 13shows'the next stage of the operation, the first set of arms havingreceded with the second set advancing toward the former head and thelatter turning circumferentially. Fig. 14: shows the final plaitingoperation with the clamping fingers in the folds prior to withdrawal.Fig. 15 is a plan detail of the top guide plate above the former head,with parts in section. Fig. 16 is a top plan of the former head. Fig. 17is a sectional detail through one of the dogs holding the cementing ringonto the head. Fig. 18 is a view partly in section showing one of thedogs in elevation. Fig. 19 is an enlarged detail view of the clutchreleasing mechanism. Fig. 2O is a sectional detail of same. Fig. 21 is afragmental detail of the releasing dog, and Fig. 22 is a sectionaldetail of the shaft 62 and quill shafts carried thereon with theirrespective arms shown in elevation.

Referring now to the drawings, the machine is supported on a baseplate 1. A stationary, vertical column or post 2 is centrally mounted onthe base plate 1, and is permanently fastened thereto by bolts passingthrough a flanged plate formed at its lower end; Column 2 supports atits upper extremity a circular plate 3 having twice as many radial slotscut in its circumference as the number of plaits which it is desired toproduce in the finished article. The plate 3 comprises two radiallyslotted disks held together by screws, and having annular recesses ofsemicircular cross section cut in the faces of their contractingsurfaces, so as to form, when assembled, a circular cavity located belowthe upper surface of the plate and extending completely around its outerslotted circumference. The plate 3 constitutes a central bearing 4platefor a plurality of pivoted plaiting and folding bladeswhich extendradially therefrom. These blades are of two distinctly different types 4and 5 respectively,'and are arranged alternately in the slots around thecircumference of the plate 3, being pivotally carried on small, roundtrunnions or pins disposed within the circular cavity 3 and passingthrough perforations formed in the inner ends of the blades. When themachin@ iS in its normal Patented June e, 191e.

position of rest the folding blades all lie in the same horizontal planeand forni together with the plate 3 a level table upon which the stockto be plaited is i it F rom the foregoing it will be understood thatthere are an equal number of the blades et and 5, and that the numbercorresponds exactly with the number of plaits to be formed. The bladesLl are provided with hinged clamp fingers G hinged to their outer endsto swing about their axes through an angle of 90C. F or convenience theblades at will hereafter be referred to as clam Qing blades to morereadily distinguish them from the folding blades Il`wo similar links 'lconnect each clamp finger 6 to one end of a pair of links 8, the otherends of which are pivoted to the blades 4, as shown. djustableconnecting rods 9 are connected at their upper ends to the pivotsconnecting links 7 and 8, and at their lower ends to the flanged collarplate 10 of a sliding sleeve 11, which encircles column 2; the bearingsin plate 10 being of similar construction to those on plate 3. rTheclamping lingers G are provided with measuring fingers ir eted theretoand extending beyond their fre ends in a straight line. Motion in anupward direction of sleeve 11 simultaneously folds all the clampingfingers G down upon the blades el, thus clamping the material which liesthereon.

The clamping blades el are formed near their outer ends with dependingear pieces 13 which are pivotally connected to one end of adjustablerods 14, the other ends of which have swivel connection with a flangecollar plate 15 of a second sleeve 15, which surrounds sleeve 11 and isfree to slide re1- tically thereon. lll/lotion imparted to sleeve 16moves all the clamping blades l simultaneously.

The folding blades 5 are formed 'ith depending ear pieces 17 (similar tothe pieces 13) which are pivotally connected to the upper ends ofadjustable rods 18, the lower ends of which have a swivel connectionwith a flange collar plate 19 of a third sleeve 20 surrounding sleeve 16and free to slide verticallyv thereon. Motion imparted to sleeve 20moves all the folding blades 5 siniultaneously.

Fastened at the opposite sides of the base plate 1 and supported by itare two pedestals 21. These pedestals are arranged in the rear of thestationary column 2, and are in line with cach other. They are providedat their upper ends with bearings in which the main operating shaft 22is journaled. Keyed near one end of shaft 22 :is a. collar 23, and a cap2l is fastened on the same end of this shaft. A gear wheel 25 is looselyjournaled on shaft 22 and is confined between cap 24 and collar 23. Gearwheel 25 is driven by a small gear 26 with which it is constantly inmesh. rThis gear is positively carried on a driving` shaft 27 suitablyOurnaled in bearings mounted on the base plate 1. At its opposite endthe shaft 2? is provided with a driving pulley 28 coupled by a belt tothe source of power (not shown).

A. sliding clutch pin 25 is carried in a recess in the collar 23, butbeing longer than the thickness of the collar is adapted to protrudetherefrom on one side or the other. Gear wheel 25 is provided withcircular notches formed in its face adjacent the collar Circular plugs30 are inserted in these notches and are formed with slots 30 at theirouter ends, which the clutch pin 25 enters to lock the wheel 25 to shaft22. A coiled spring 31 is compressed within pin 25 within the collar 23,and tends to push the end of the pin into gear wheel 25 when the pin isreleased. rlhe opposite end of clutch pin 25 which projects from theinner face of collar 23 is formed with a cut out notch or recess adaptedto be engaged `by the end of a releasing dog 32 pivotally carried on abracket d on the pedestal 21. The free end of the releasing dog 32 istapered and curved so as to conform to the surface of collar 21 which itsurrounds, and engages the notch of the clutch pin 25 in such mannerthat when it is moved about its pivot the wedgeshaped edge will draw theclutch pin 25 into the collar 23, releasing the gear wheel 25. A coiledspring 3d housed within a casing in the bracket et bears against the dog32, keeping it in contact with the collar Releasing dog 32 is providedwith an eye bolt on its lower side to which anv arm of a bell cranklever 35 is secured, the other arm of which terminates in the handle 36extendingupwardly to some position where it will be readily accessibleto the operator. The above arrangement is such that in operation the dog32 is depressed by means of the handle 86, which releases clutch pin25', which in turn engages gear wheel 25, coupling shaft 22 with thesource of power through gear pinion 26. When shaft 22 has made onerevolution, dog` 32 again enters the notch in the end of clutch pin 25withdraw ing it from engagement with gear wheel 25 and consequentlyuncoupling shaft 22 there` from. Thus one revolution of shaft 22 isaccomplished before the machine again stops. lThe opposite end of shaftcarries a disk 37 which is surrounded by a brake band 38 whose object isto prevent the shaft 22 from coasting. Brake band 38 is adjusted by abolt 39 and hand wheel 40 screw threaded thereon. Shaft 22 also carriesfour cams hrl1, d2, lf3 and 44; disposed at suitable points along itslength, which may be keyed thereto or adjustably fastened so that theymay be shifted around the shaft, and fastened in any position for thepurpose of adjusting their period of operating. Four bushings 45, 46,two' of which are shown at 47 and 48 on Figs. 6 and 9 are freely carriedon the shaft 22 and serve to support the ends of push rods, as willhereinafter be explained. Y

A bent column 49 is supported by base plate l having its base securedthereto in the rear of column 2, and being provided at its upper endwith a vertical sleeve 50 which forms a bearing for a shaft 51 havingthe same axis as the column 2. The shaft l carries at its lower end acircular head (which will be more fully described hereafter), and at itsupper end an arm 53. A

r' tubular bearing 54 confines the upper end of a vertically movableadjustable push rod 55 on the extreme upper end of which a cani plate 56is secured.' The cam plate 56 is provided with an inclined slot in whicha roller 57 on the end of arm 53 is confined, thus converting verticalmotion of the push rod 55 into circular or oscillatory motion of t arm53, shaft 50 and head 52. The vertical push rod 55 carries at its lowerend avstrap 58 which slides over bushing 47 on the shaft 22, thusconstraining the motion of rod 55 to an approximately straight line. Aroller 59 is carried on the lower end of shaft 55 and is confined in agroove in cam 43. It

will thus be seen that motion of vertical rod and hence indirectlymotion of the head 52 is controlled by the shape of cam 43. A furtherand more direct means of adjusting the motion of head 52 is provided forin the manner of attaching the cam plate 56 to the upper end of rod 55.The pitch or departing angle of the slot in plate 56 is changed by meansof this adjustment. Plate cam 56 is secured to the rod end by two tapbolts, one of which acts as a stud around which the plate cam 56 mayturn; the other passes through a curved slotted hole 56X in cam plate 56and locks the plate to the rod end at various angles. The same resultmay be obtained by having different interchangeable cam plates laid outat different angles.

Y The angular motion of head 52 is thus increased or decreased for thepurpose of varying the design of the plaits.

Two pedestals 60 are secured to the base plate l at opposite sidesthereof, in front of column 2. They are provided at their upper endswith bearings 6l in which a horizontal shaft 62 is loosely j ournaled. Apair of radially extending arms 63 are keyed to shaft 62. These arms aresuciently spaced apart 0n the length of the shaft, and are so positionedas to extend in a downward direction on either side of the centralvertical column 2. A third arrn 64 is keyed to shaft 62-and extendsradially therefrom at right angles to the arms 63, forming a rigidbell-crank structure. A stud 65 is carried in the free end of arm 64 towhich an adjustable horzontal push rod 66 is pivoted. The

otally fastened to trunnion arms 72 extending from the opposite sides ofa collar 73 surrounding an inner collar 74 on the lower' end of sleeve11. This inner collar 74 has an outwardly projecting shoulder 74a. Theouter collar 73 has an inwardly projecting shoulder 73a extendingbeneath and spaced apart from shoulder 74"L to form an inclosed annularcavity between the two in which a ring 75 of elastic material is placed,and acts as a spring connection between collars 73 and 74. A ring 76 isscrew-threaded on the lower end of collar 74 and serves to retain collar73 on collar 74. Through the above described mechanism sleeve 1l iscontrolled by cam 44, hence the clamping lingers 6 are controlled by cam44, and their motion is defined by the shape of said cam 44 and theadjustment of rods 66 and 9,

which latter have their ends screw-threaded into the sockets by whichthey are hinged to the adjoining parts, although the movement of blades4 must also be taken into account, as the two movements are notindependentY of each other, as will be hereinafter described. v

Surrounding a portion of shaft 62 is a quill shaft 77 freely carriedthereon. Quill shaft 77 carries a lifting arm 78 formed integraltherewith at one end, and keyed to its opposite end is a bell crank 79having one of its arms of the same length as the'fixed arm on the quillshaft and extending radially in the same direction, thus forming a pairof arms similar to arms 63 on shaft 62. The other arm of bell crank 79extends radially at right angles to the fixed arm 78 and carries at itsextremity a stud 80 to which is pivotally connected an adjustablehorizontal push rod 81, the other end of which is provided with a rollerand a strap sliding over a bushing on shaft 22. rhe

roller is confined in a groove in cam 4l on -www unvulcanized rubber orlike compositions it is necessary to render the surface sticky by theapplication of a solvent at the points which it is desired to havecohere, and dusting all other portions with soapstone or some similarcomposition. With vulcanized rubber or like compositions it is necessaryto paint the portions which it is desired to have adhere with a cementwhich will cause adhesion. Vith fabric covered 'with rubber or similarmaterials the above process may be used. lVith cloth, leather or paperor similar compositions the parts which it is desired to have adhere arepainted with a glue or cement suited to the material. In using somecements the action of heat would be of great assistance if notabsolutely necessary in some cases, and in using oements of this natureor plastic materials which are softened and become sticky themselves atmoderately warm temperatures it is proposed to apply heat to the head 52or to the ring 98 orboth, which heating may be done in place on themachine or the ring 98 previously heated before placing in the machine.

In using one of the methods above described, suited to the material athand, the disk of material is prepared to adhere at all points comingadjacent the ring 98 in the folding process which, for instance, wouldbe an annular band aroundboth sides of the disk of a. widthcorresponding to the depth of ring 98 and at such a distance from theedg'e'of the disk or material as to register with said ring. This diskof material is then placed centrally 'on blades 4 and 5 which, in theirnormal position, present an approximately iiat surface. then placed onhead 52. The handle 36 operating' the clutch on shaft 22 is then moved,causing gear 25 to engage with shaft 22, which will then make onecomplete revolution and disengage itself from gear 25. lVhen shaft 22starts to revolve the rollers in the cams are all at the nearest pointsto the center of shaft 22, Vand the roller-on cam 44 immediately startsto travel away from the center of shaft 82 until the clamping fingers 6have folded down against the blades 4, thereby clamping the disk ofmaterial so that it will have to follow blades 4. Previous to thisblades 4 and 5 have not moved from their original position due to thefact that cams 41 and 42 have a dwell during this interval. Blades 4 and5 now start to move upward and inward toward ring 98, both sets ofblades starting to move at the same time, but blades 5 travel fasterthan blades 4. 'During this interval linger clamp 6 remains in the samerelative position to blades 4, and as the material is held down toblades 4 by clamps 6 and blades 5 are constantly getting ahead of blades4 the material takes the shape of corrugations or The ring 98 is rolas.VThis aisance which blades 5 are-i117 advance4 of blades 4 at any momentis just enough to take up the slack caused by the blades 4 coming closertogether, and cams 4l .and 42 are designed to take care of this whilecam 44 is so designed as to make clamp with ring 98, when bothblades'4-and 5 stop moving'. Ring 98 has been previously prepared sothatthe material between blades 5 and ring 98 will adhere to the ringwhen the bladesv .are withdrawn. DuringV the Vnekt operationblades 4remain in their last position, while blades 5 recede toward theiroriginal position, cams'42`and 44 being de-V signed with a dwell duringthis interval, and cam 41 being designed so that its roller travelsbacktoward the center of the shaft 22. When blades 5 have receded far enoughto be out of the way of further travel of blades 4 upward, blades 4again start toward ring 98, and at the same time cam 43 rotates head 52and ring 98 through a small angle, ring 98 attaining its stopping pointat the same moment ,that blades 4 bring clamping linger 6 in contactwith ring 98, and also stop. Blades 4 then remain in contact with ring98 until the material which is now plaitedl around ring 98 perfectlyadheres to itself. Blades 4 then recede from ring 98 and at the sametime clamp lingers 6 gradually release the material so that measuringblades l2 attached to clamps 6 and which vare each surrounded by a plaitof the mastops. The plaited article may then be removed on the ring 98andafterward removed therefrom.

ln making various articles such as can be accomplished on thisv machine,it isfound that many are improved in appearance and strengthened by theaddition of a band of the same material applied over the portion wherethe plaits are cemented together, and

this may be done in two different ways:

first, a band of material is placed around the ring 98 and prepared soas to present an adhesive surface, the same as though it were the ring98 itself. The disk is ythen plaited against this band of material asabove described, and after plaiting the material plaited with the bandadhering thereto may be slipped off of the ring 98 and a second. bandmay then be prepared and put over the outside if so desired. The secondmethod is as follows: Ring 98 is Lirst covered with a band of starchedfabric or otherwise prepared so as to present a surface to which thecement used will adhere only slightly. @ver this a coat of cement isplaced, and the disk of material plaited to this cement surface. Thering 98 is then taken from the machine and a band of material placedaround the outside of the plaited surface. The plaited article may thenbe stripped from the starched or otherwise prepared surface or ring 9Sand turned inside out, and the second band laid on over the plaits ifrequired. This has proven the most successful method in making articlesof india rubber. The starched coating decreases the adhesiveness of thematerial to the fabric and facilitates stripping olf the plaitedarticle.

Some articles do not require to be plaited all around, and in such casethe disk is only prepared with cement or otherwise as described abovefor the distance around the disk which is to be plaited. The machine isthen operated as described above, and the plaits where the stock isprepared are stuck while the portions not prepared fall apart afterbeing plait-ed. The machine will also plait a half disk, a quarter disk,a flat ring of stock having the center cut away, or any portion of aflat ring of stock.

ln order to overcome any diliiculty which otherwise would be experiencedin getting the measuring fingers 1Q to Withdraw out of the stickymaterial in which they are completely inclosed in the plaitingoperation, it is advisable either to dust them with some powderedmaterial such as soapstone, Which will prevent the adhesion of thematerial to the fingers, or to wipe them with a cloth or brush dipped ina lubricant. For example in using a rubber cement a tri-acid alcoholsuch as glycerin has been found to be good lubricant.

l claim as my invention l. A machine of the class described comprising aformer, and means for simultaneously presenting a plurality of spacedportions to said ring former at a plurality of points around itscircumference to form a plurality of radial plaits or folds in thematerial.

2. A machine of the class described comprising a former, and means forsimultaneously presenting a plurality of spaced portions to said ringformer at a plurality of points around its circumference to form aplurality7 of radial plaits or folds in the material, and means forimparting circumferential movement to said former.

3. e. machine of the class described comprising a former, means forsimultaneously presenting a plurality of spaced portions of a sheet ofmaterial to said former at a plurality of points around itscircumference, and means acting successively to said first acting meansfor simultaneously presenting a plurality of other portions of saidsheet to said former.

fl. A machine of the class described comprising a former, meansforsimultaneously presenting a plurality of spaced portions of a sheetof material to said former at a. plurality of points around itscircumference, and means acting successively to said first acting meansfor simultaneously presenting a plurality of other portions of saidsheet to said former, and means for imparting circumferential movementto said former.

5. A machine of the class described comprising a former head, aplurality of sets of devices adapted to carry a sheet of material, meansfor advancing one set of said devices toward said former head to causespaced portions of the material to contact therewith, and means forimparting a retarded movement to another set of devices to cause otherportions of the material to be subsequently pressed against the formerhead.

6. A machine of the class described comprising a former, two sets ofpivoted plaiting arms adapted normally tc lie in a hori- Zontal positionto support a sheet of flexible material, devices carried by one set ofarms for clamping the edges of the sheet, means for causing the otherset of arms to press spaced portions of the sheet against the formerwhile other portions are held by said devices, and means forsubsequently causing the arms carrying said devices to press said otherportions of the sheet against the former.

7. A machine of the class described comprising a circular former head, aplurality of sets of devices adapted to carry a circular disk ofmater'al, means for advancing one set of said devices toward said formerhead to make the material contact therewith, and for causing them torecede therefrom, means for causing a second set of said devices to movetoward said former head slightly in rear of said first set and forcausing them to halt in their inward movement While said first setcontacts with the former head, then continue inward to contact with theformer head and recede therefrom, and means for moving said former headcircumferentially while said sets of carrying devices are held againstsaid circumferential movement, substantially as described.

8. .et machine of the class described comprising a circular former head,a stationary column positioned in axial alinement with said former head,a plurality of sets of radial arms pivotally carried on said. columnadapted normally to carry a flat circular piecel of material, means formoving said arms about their pivots to present successive portions ofsaid material to the former head and form radial plaits or foldstherein, and means for moving said former head circumferentially,substantially as described.

9. A machine of the class described comprising a circular former head, astationary column positioned in axial alinement with said former, aplurality of sets of radial arms pivotally carried by said column, saidsets of radial armsadapted to present successive portions of a circularpiece of material carried thereon to said former to form radial plaitsor folds in the material, a common element for each set controlling themovement of all radial arms in its respective set and means for movingthe common elements independently of one another, substantially asdescribed.

l0. A machine of the class described comprising a circularl former head,a stationary column positioned in axial alinement with said former head,a plurality of sets of radial arms pivotally carried on said columnadapted to carry a circular piece of material, a plurality of slidingsleeves movable on said column, connections between each sleeve and theradial arms of the respective set controlled thereby, and means formoving said sleeves, substantially as described.

11. A machine of the class described comprising a circular former head,a stationary column positioned in axial alinement with said former head,a set of radial clamping arms pivotally carried on said column adaptedto carry a circular piece of material, a set of radial folding arms,similarly carried on said column and alternately arranged in respect tosaid clamping arms, hinged clamping fingers carried on said clampingarms, three separate elements sliding on said column having connectionswith and adapted to control the movements of the clamping arms, thefolding arms and the clamping lingers respectively, and means for movingsaid sliding members independently, substantially as described.

l2. A machine of the class described comprising a circular former head,a stationaryv column positioned in axial alinement with said formerhead, a set of radial clamping arms adapted to carry a circular piece ofmaterial, hinged clamping lingers carried on said arms, a set of radialfolding arms similarly carried on said column and alternately arrangedin respect to said clamping arms, a' sliding sleeve movable on saidcolumn and having' connections to the clamping lingers for moving themsimultaneously, a second sleeve slidable on said first sleeve and havingGopiel of this patent may be obtained for five cents each, by addressingthe Washington, 2D. C.

Vof material, a vertical bent connections with the clamping arms, athird sleeve slidable on the second sleeve and hav-` ing connectionswith the folding arms, and means for moving said sleeves independentlyof one another, substantially as described.

18. A machine of the class described comprising a circular former head,a stationary column positioned in axial alinement with said head, a setof radial clamping arms adapted to carry a circular piece of materialpivotally carried on said i column, hinged clamping fingers on saidarms, a set of radial folding arms, similarly carried on said column andalternately arranged in respect to said clamping arms, three movablesleeves arranged to slide one within the other on said column and havingconnections with the sets of clamping fingers, clamping arms and foldingarms respectively, a horizontal shaft at one side of said column, asecond horizontal shaft arranged on the other side of said column havinga pair of axial sleeves carried thereon, grooved cams carried on saidlirst mentioned horizontal shaft, bell cranks carried on said secondhorizontal shaft and said axial sleeves, horizontal push rods eachhaving one end connected with one arm of thebell cranks and having theiropposite ends cooperate with said cams, and connections between theother end of each bell crank and the respective sliding sleeves,substantially as described.

14C. A machine of the class described coinprising a stationary column,aV plurality of radial arms pivotally carried at the upper end thereofadapted to carry a circular piece column positioned in rear of saidfirst column and carrying at its upper end a movable sleeve, acircular-former head attached to the lower end of said sleeve spacedfrom and in axial alinement with said stationary column, a horizontallydisposed shaft at one side of said column, a cam keyed on said shaft, avertical push rod having a bearing in the upper part of said bent columnand having its lower end coperate with said cam, said push rod providedat its upper end with a plate having an inclined slot formed therein andan arm rigidly connected with said movable sleeve and having its innerend engaging in said slot whereby the rotation of the horizontal shaftcauses the vertical push rod to move in its bearing and converts suchmovement into a circumferential movement of the former head.

1n testimony whereof l aflix my signature in presence of two witnesses.

FERDNAND F. BRUCKER. `Witnesses R. GRIFFITH,

C. A. WOLF.

Commissioner of Patents.

